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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.100 by root, Fri Jun 1 06:00:40 2007 UTC vs.
Revision 1.182 by root, Thu May 19 22:57:04 2011 UTC

1#include "xthread.h" 1#include "libeio/xthread.h"
2 2
3#include <errno.h> 3#include <errno.h>
4 4
5#include "EXTERN.h" 5#include "EXTERN.h"
6#include "perl.h" 6#include "perl.h"
7#include "XSUB.h" 7#include "XSUB.h"
8 8
9#include "autoconf/config.h" 9#include "schmorp.h"
10 10
11#include <stddef.h> 11#include <stddef.h>
12#include <stdlib.h> 12#include <stdlib.h>
13#include <errno.h> 13#include <errno.h>
14#include <sys/time.h>
15#include <sys/select.h>
16#include <sys/types.h> 14#include <sys/types.h>
17#include <sys/stat.h> 15#include <sys/stat.h>
16#include <sys/statvfs.h>
18#include <limits.h> 17#include <limits.h>
19#include <unistd.h>
20#include <fcntl.h> 18#include <fcntl.h>
21#include <signal.h>
22#include <sched.h> 19#include <sched.h>
20
21#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22# include <sys/mman.h>
23#endif
24
25/* perl namespace pollution */
26#undef VERSION
27
28#ifdef _WIN32
29
30# define EIO_STRUCT_DIRENT Direntry_t
31# undef malloc
32# undef free
33
34// perl overrides all those nice win32 functions
35# undef open
36# undef read
37# undef write
38# undef send
39# undef recv
40# undef stat
41# undef fstat
42# define lstat stat
43# undef truncate
44# undef ftruncate
45# undef open
46# undef close
47# undef unlink
48# undef rmdir
49# undef rename
50# undef lseek
51
52# define chown(a,b,c) (errno = ENOSYS, -1)
53# define fchown(a,b,c) (errno = ENOSYS, -1)
54# define fchmod(a,b) (errno = ENOSYS, -1)
55# define symlink(a,b) (errno = ENOSYS, -1)
56# define readlink(a,b,c) (errno = ENOSYS, -1)
57# define mknod(a,b,c) (errno = ENOSYS, -1)
58# define truncate(a,b) (errno = ENOSYS, -1)
59# define ftruncate(fd,o) chsize ((fd), (o))
60# define fsync(fd) _commit (fd)
61# define opendir(fd) (errno = ENOSYS, 0)
62# define readdir(fd) (errno = ENOSYS, -1)
63# define closedir(fd) (errno = ENOSYS, -1)
64# define mkdir(a,b) mkdir (a)
65
66#else
67
68# include <sys/time.h>
69# include <sys/select.h>
70# include <unistd.h>
23#include <utime.h> 71# include <utime.h>
24
25#if HAVE_SENDFILE
26# if __linux
27# include <sys/sendfile.h>
28# elif __freebsd
29# include <sys/socket.h>
30# include <sys/uio.h> 72# include <signal.h>
31# elif __hpux 73# define EIO_STRUCT_DIRENT struct dirent
32# include <sys/socket.h> 74
33# elif __solaris /* not yet */ 75#endif
34# include <sys/sendfile.h> 76
77/* perl stupidly overrides readdir and maybe others */
78/* with thread-unsafe versions, imagine that :( */
79#undef readdir
80#undef opendir
81#undef closedir
82
83#define EIO_STRUCT_STAT Stat_t
84
85/* use NV for 32 bit perls as it allows larger offsets */
86#if IVSIZE >= 8
87# define VAL64 IV
88# define SvVAL64 SvIV
89# define newSVval64 newSViv
90#else
91# define VAL64 NV
92# define SvVAL64 SvNV
93# define newSVval64 newSVnv
94#endif
95
96/*****************************************************************************/
97
98#if __GNUC__ >= 3
99# define expect(expr,value) __builtin_expect ((expr),(value))
100#else
101# define expect(expr,value) (expr)
102#endif
103
104#define expect_false(expr) expect ((expr) != 0, 0)
105#define expect_true(expr) expect ((expr) != 0, 1)
106
107/*****************************************************************************/
108
109typedef SV SV8; /* byte-sv, used for argument-checking */
110typedef int aio_rfd; /* read file desriptor */
111typedef int aio_wfd; /* write file descriptor */
112
113static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
114
115#define EIO_REQ_MEMBERS \
116 SV *callback; \
117 SV *sv1, *sv2; \
118 STRLEN stroffset; \
119 SV *self;
120
121#define EIO_NO_WRAPPERS 1
122
123#include "libeio/config.h"
124#include "libeio/eio.h"
125
126/* Linux/others */
127#ifndef O_ASYNC
128# define O_ASYNC 0
129#endif
130#ifndef O_DIRECT
131# define O_DIRECT 0
132#endif
133#ifndef O_NOATIME
134# define O_NOATIME 0
135#endif
136
137/* POSIX */
138#ifndef O_CLOEXEC
139# define O_CLOEXEC 0
140#endif
141#ifndef O_NOFOLLOW
142# define O_NOFOLLOW 0
143#endif
144#ifndef O_NOCTTY
145# define O_NOCTTY 0
146#endif
147#ifndef O_NONBLOCK
148# define O_NONBLOCK 0
149#endif
150#ifndef O_EXEC
151# define O_EXEC 0
152#endif
153#ifndef O_SEARCH
154# define O_SEARCH 0
155#endif
156#ifndef O_DIRECTORY
157# define O_DIRECTORY 0
158#endif
159#ifndef O_DSYNC
160# define O_DSYNC 0
161#endif
162#ifndef O_RSYNC
163# define O_RSYNC 0
164#endif
165#ifndef O_SYNC
166# define O_SYNC 0
167#endif
168#ifndef O_TTY_INIT
169# define O_TTY_INIT 0
170#endif
171
172#ifndef POSIX_FADV_NORMAL
173# define POSIX_FADV_NORMAL 0
174#endif
175#ifndef POSIX_FADV_SEQUENTIAL
176# define POSIX_FADV_SEQUENTIAL 0
177#endif
178#ifndef POSIX_FADV_RANDOM
179# define POSIX_FADV_RANDOM 0
180#endif
181#ifndef POSIX_FADV_NOREUSE
182# define POSIX_FADV_NOREUSE 0
183#endif
184#ifndef POSIX_FADV_WILLNEED
185# define POSIX_FADV_WILLNEED 0
186#endif
187#ifndef POSIX_FADV_DONTNEED
188# define POSIX_FADV_DONTNEED 0
189#endif
190
191#if !HAVE_POSIX_FADVISE
192# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
193#endif
194
195#ifndef POSIX_MADV_NORMAL
196# define POSIX_MADV_NORMAL 0
197#endif
198#ifndef POSIX_MADV_SEQUENTIAL
199# define POSIX_MADV_SEQUENTIAL 0
200#endif
201#ifndef POSIX_MADV_RANDOM
202# define POSIX_MADV_RANDOM 0
203#endif
204#ifndef POSIX_MADV_WILLNEED
205# define POSIX_MADV_WILLNEED 0
206#endif
207#ifndef POSIX_MADV_DONTNEED
208# define POSIX_MADV_DONTNEED 0
209#endif
210
211#if !HAVE_POSIX_MADVISE
212# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
213#endif
214
215#ifndef PROT_NONE
216# define PROT_NONE 0
217#endif
218#ifndef PROT_READ
219# define PROT_READ 0
220#endif
221#ifndef PROT_WRITE
222# define PROT_READ 0
223#endif
224#ifndef PROT_EXEC
225# define PROT_EXEC 0
226#endif
227
228#ifndef ST_NODEV
229# define ST_NODEV 0
230#endif
231#ifndef ST_NOEXEC
232# define ST_NOEXEC 0
233#endif
234#ifndef ST_SYNCHRONOUS
235# define ST_SYNCHRONOUS 0
236#endif
237#ifndef ST_MANDLOCK
238# define ST_MANDLOCK 0
239#endif
240#ifndef ST_WRITE
241# define ST_WRITE 0
242#endif
243#ifndef ST_APPEND
244# define ST_APPEND 0
245#endif
246#ifndef ST_IMMUTABLE
247# define ST_IMMUTABLE 0
248#endif
249#ifndef ST_NOATIME
250# define ST_NOATIME 0
251#endif
252#ifndef ST_NODIRATIME
253# define ST_NODIRATIME 0
254#endif
255#ifndef ST_RELATIME
256# define ST_RELATIME 0
257#endif
258
259#ifndef S_IFIFO
260# define S_IFIFO 0
261#endif
262#ifndef S_IFCHR
263# define S_IFCHR 0
264#endif
265#ifndef S_IFBLK
266# define S_IFBLK 0
267#endif
268#ifndef S_IFLNK
269# define S_IFLNK 0
270#endif
271#ifndef S_IFREG
272# define S_IFREG 0
273#endif
274#ifndef S_IFDIR
275# define S_IFDIR 0
276#endif
277#ifndef S_IFWHT
278# define S_IFWHT 0
279#endif
280#ifndef S_IFSOCK
281# define S_IFSOCK 0
282#endif
283
284#ifndef MAP_ANONYMOUS
285# ifdef MAP_ANON
286# define MAP_ANONYMOUS MAP_ANON
35# else 287# else
36# error sendfile support requested but not available 288# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
37# endif 289# endif
38#endif 290#endif
39 291#ifndef MAP_HUGETLB
40/* number of seconds after which idle threads exit */ 292# define MAP_HUGETLB 0
41#define IDLE_TIMEOUT 10
42
43/* used for struct dirent, AIX doesn't provide it */
44#ifndef NAME_MAX
45# define NAME_MAX 4096
46#endif 293#endif
294#ifndef MAP_LOCKED
295# define MAP_LOCKED 0
296#endif
297#ifndef MAP_NORESERVE
298# define MAP_NORESERVE 0
299#endif
300#ifndef MAP_POPULATE
301# define MAP_POPULATE 0
302#endif
303#ifndef MAP_NONBLOCK
304# define MAP_NONBLOCK 0
305#endif
47 306
48/* buffer size for various temporary buffers */ 307#ifndef makedev
49#define AIO_BUFSIZE 65536 308# define makedev(maj,min) (((maj) << 8) | (min))
309#endif
310#ifndef major
311# define major(dev) ((dev) >> 8)
312#endif
313#ifndef minor
314# define minor(dev) ((dev) & 0xff)
315#endif
50 316
51#define dBUF \ 317#ifndef PAGESIZE
52 char *aio_buf; \ 318# define PAGESIZE sysconf (_SC_PAGESIZE)
53 LOCK (wrklock); \ 319#endif
54 self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
55 UNLOCK (wrklock); \
56 if (!aio_buf) \
57 return -1;
58 320
59typedef SV SV8; /* byte-sv, used for argument-checking */ 321static int req_invoke (eio_req *req);
322#define EIO_FINISH(req) req_invoke (req)
323static void req_destroy (eio_req *grp);
324#define EIO_DESTROY(req) req_destroy (req)
60 325
61enum { 326enum {
62 REQ_QUIT, 327 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
63 REQ_OPEN, REQ_CLOSE,
64 REQ_READ, REQ_WRITE, REQ_READAHEAD,
65 REQ_SENDFILE,
66 REQ_STAT, REQ_LSTAT, REQ_FSTAT,
67 REQ_UTIME, REQ_FUTIME, /* must be consecutive */
68 REQ_CHMOD, REQ_FCHMOD, /* must be consecutive */
69 REQ_CHOWN, REQ_FCHOWN, /* must be consecutive */
70 REQ_FSYNC, REQ_FDATASYNC,
71 REQ_UNLINK, REQ_RMDIR, REQ_MKDIR, REQ_RENAME,
72 REQ_MKNOD, REQ_READDIR,
73 REQ_LINK, REQ_SYMLINK, REQ_READLINK,
74 REQ_GROUP, REQ_NOP,
75 REQ_BUSY,
76}; 328};
77 329
78#define AIO_REQ_KLASS "IO::AIO::REQ" 330#include "libeio/eio.c"
79#define AIO_GRP_KLASS "IO::AIO::GRP"
80 331
81typedef struct aio_cb
82{
83 struct aio_cb *volatile next;
84
85 SV *callback;
86 SV *sv1, *sv2;
87 void *ptr1, *ptr2;
88 off_t offs;
89 size_t size;
90 ssize_t result;
91 double nv1, nv2;
92
93 STRLEN stroffset;
94 int type;
95 int int1, int2, int3;
96 int errorno;
97 mode_t mode; /* open */
98
99 unsigned char flags;
100 unsigned char pri;
101
102 SV *self; /* the perl counterpart of this request, if any */
103 struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
104} aio_cb;
105
106enum {
107 FLAG_CANCELLED = 0x01, /* request was cancelled */
108 FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
109 FLAG_PTR2_FREE = 0x80, /* need to free(ptr2) */
110};
111
112typedef aio_cb *aio_req; 332typedef eio_req *aio_req;
113typedef aio_cb *aio_req_ornot; 333typedef eio_req *aio_req_ornot;
114 334
115enum { 335static SV *on_next_submit;
116 PRI_MIN = -4, 336static int next_pri = EIO_PRI_DEFAULT;
117 PRI_MAX = 4, 337static int max_outstanding;
118 338
119 DEFAULT_PRI = 0, 339static s_epipe respipe;
120 PRI_BIAS = -PRI_MIN,
121 NUM_PRI = PRI_MAX + PRI_BIAS + 1,
122};
123 340
124#define AIO_TICKS ((1000000 + 1023) >> 10)
125
126static unsigned int max_poll_time = 0;
127static unsigned int max_poll_reqs = 0;
128
129/* calculcate time difference in ~1/AIO_TICKS of a second */
130static int tvdiff (struct timeval *tv1, struct timeval *tv2)
131{
132 return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
133 + ((tv2->tv_usec - tv1->tv_usec) >> 10);
134}
135
136static thread_t main_tid;
137static int main_sig;
138static int block_sig_level;
139
140void block_sig ()
141{
142 sigset_t ss;
143
144 if (block_sig_level++)
145 return;
146
147 if (!main_sig)
148 return;
149
150 sigemptyset (&ss);
151 sigaddset (&ss, main_sig);
152 pthread_sigmask (SIG_BLOCK, &ss, 0);
153}
154
155void unblock_sig ()
156{
157 sigset_t ss;
158
159 if (--block_sig_level)
160 return;
161
162 if (!main_sig)
163 return;
164
165 sigemptyset (&ss);
166 sigaddset (&ss, main_sig);
167 pthread_sigmask (SIG_UNBLOCK, &ss, 0);
168}
169
170static int next_pri = DEFAULT_PRI + PRI_BIAS;
171
172static unsigned int started, idle, wanted;
173
174/* worker threads management */
175static mutex_t wrklock = MUTEX_INIT;
176
177typedef struct worker {
178 /* locked by wrklock */
179 struct worker *prev, *next;
180
181 thread_t tid;
182
183 /* locked by reslock, reqlock or wrklock */
184 aio_req req; /* currently processed request */
185 void *dbuf;
186 DIR *dirp;
187} worker;
188
189static worker wrk_first = { &wrk_first, &wrk_first, 0 };
190
191static void worker_clear (worker *wrk)
192{
193 if (wrk->dirp)
194 {
195 closedir (wrk->dirp);
196 wrk->dirp = 0;
197 }
198
199 if (wrk->dbuf)
200 {
201 free (wrk->dbuf);
202 wrk->dbuf = 0;
203 }
204}
205
206static void worker_free (worker *wrk)
207{
208 wrk->next->prev = wrk->prev;
209 wrk->prev->next = wrk->next;
210
211 free (wrk);
212}
213
214static volatile unsigned int nreqs, nready, npending;
215static volatile unsigned int max_idle = 4;
216static volatile unsigned int max_outstanding = 0xffffffff;
217static int respipe [2];
218
219static mutex_t reslock = MUTEX_INIT;
220static mutex_t reqlock = MUTEX_INIT;
221static cond_t reqwait = COND_INIT;
222
223#if WORDACCESS_UNSAFE
224
225static unsigned int get_nready ()
226{
227 unsigned int retval;
228
229 LOCK (reqlock);
230 retval = nready;
231 UNLOCK (reqlock);
232
233 return retval;
234}
235
236static unsigned int get_npending ()
237{
238 unsigned int retval;
239
240 LOCK (reslock);
241 retval = npending;
242 UNLOCK (reslock);
243
244 return retval;
245}
246
247static unsigned int get_nthreads ()
248{
249 unsigned int retval;
250
251 LOCK (wrklock);
252 retval = started;
253 UNLOCK (wrklock);
254
255 return retval;
256}
257
258#else
259
260# define get_nready() nready
261# define get_npending() npending
262# define get_nthreads() started
263
264#endif
265
266/*
267 * a somewhat faster data structure might be nice, but
268 * with 8 priorities this actually needs <20 insns
269 * per shift, the most expensive operation.
270 */
271typedef struct {
272 aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
273 int size;
274} reqq;
275
276static reqq req_queue;
277static reqq res_queue;
278
279int reqq_push (reqq *q, aio_req req)
280{
281 int pri = req->pri;
282 req->next = 0;
283
284 if (q->qe[pri])
285 {
286 q->qe[pri]->next = req;
287 q->qe[pri] = req;
288 }
289 else
290 q->qe[pri] = q->qs[pri] = req;
291
292 return q->size++;
293}
294
295aio_req reqq_shift (reqq *q)
296{
297 int pri;
298
299 if (!q->size)
300 return 0;
301
302 --q->size;
303
304 for (pri = NUM_PRI; pri--; )
305 {
306 aio_req req = q->qs[pri];
307
308 if (req)
309 {
310 if (!(q->qs[pri] = req->next))
311 q->qe[pri] = 0;
312
313 return req;
314 }
315 }
316
317 abort ();
318}
319
320static int poll_cb ();
321static int req_invoke (aio_req req);
322static void req_free (aio_req req); 341static void req_destroy (aio_req req);
323static void req_cancel (aio_req req); 342static void req_cancel (aio_req req);
324 343
344static void want_poll (void)
345{
346 /* write a dummy byte to the pipe so fh becomes ready */
347 s_epipe_signal (&respipe);
348}
349
350static void done_poll (void)
351{
352 /* read any signals sent by the worker threads */
353 s_epipe_drain (&respipe);
354}
355
325/* must be called at most once */ 356/* must be called at most once */
326static SV *req_sv (aio_req req, const char *klass) 357static SV *req_sv (aio_req req, HV *stash)
327{ 358{
328 if (!req->self) 359 if (!req->self)
329 { 360 {
330 req->self = (SV *)newHV (); 361 req->self = (SV *)newHV ();
331 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0); 362 sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
332 } 363 }
333 364
334 return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1))); 365 return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
335} 366}
336 367
337static aio_req SvAIO_REQ (SV *sv) 368static aio_req SvAIO_REQ (SV *sv)
338{ 369{
339 MAGIC *mg; 370 MAGIC *mg;
340 371
341 if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv)) 372 if (!SvROK (sv)
373 || (SvSTASH (SvRV (sv)) != aio_grp_stash
374 && SvSTASH (SvRV (sv)) != aio_req_stash
375 && !sv_derived_from (sv, "IO::AIO::REQ")))
342 croak ("object of class " AIO_REQ_KLASS " expected"); 376 croak ("object of class IO::AIO::REQ expected");
343 377
344 mg = mg_find (SvRV (sv), PERL_MAGIC_ext); 378 mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
345 379
346 return mg ? (aio_req)mg->mg_ptr : 0; 380 return mg ? (aio_req)mg->mg_ptr : 0;
347} 381}
348 382
349static void aio_grp_feed (aio_req grp) 383static void aio_grp_feed (aio_req grp)
350{ 384{
351 block_sig (); 385 if (grp->sv2 && SvOK (grp->sv2))
352
353 while (grp->size < grp->int2 && !(grp->flags & FLAG_CANCELLED))
354 { 386 {
355 int old_len = grp->size;
356
357 if (grp->sv2 && SvOK (grp->sv2))
358 {
359 dSP; 387 dSP;
360 388
361 ENTER; 389 ENTER;
362 SAVETMPS; 390 SAVETMPS;
363 PUSHMARK (SP); 391 PUSHMARK (SP);
364 XPUSHs (req_sv (grp, AIO_GRP_KLASS)); 392 XPUSHs (req_sv (grp, aio_grp_stash));
365 PUTBACK; 393 PUTBACK;
366 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR); 394 call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
367 SPAGAIN; 395 SPAGAIN;
368 FREETMPS; 396 FREETMPS;
369 LEAVE; 397 LEAVE;
370 }
371
372 /* stop if no progress has been made */
373 if (old_len == grp->size)
374 {
375 SvREFCNT_dec (grp->sv2);
376 grp->sv2 = 0;
377 break;
378 }
379 } 398 }
380
381 unblock_sig ();
382} 399}
383 400
384static void aio_grp_dec (aio_req grp) 401static void req_submit (eio_req *req)
385{ 402{
386 --grp->size; 403 eio_submit (req);
387 404
388 /* call feeder, if applicable */ 405 if (expect_false (on_next_submit))
389 aio_grp_feed (grp);
390
391 /* finish, if done */
392 if (!grp->size && grp->int1)
393 { 406 {
394 block_sig (); 407 dSP;
408 SV *cb = sv_2mortal (on_next_submit);
395 409
396 if (!req_invoke (grp)) 410 on_next_submit = 0;
397 {
398 req_free (grp);
399 unblock_sig ();
400 croak (0);
401 }
402 411
403 req_free (grp); 412 PUSHMARK (SP);
404 unblock_sig (); 413 PUTBACK;
414 call_sv (cb, G_DISCARD | G_EVAL);
405 } 415 }
406} 416}
407 417
408static int req_invoke (aio_req req) 418static int req_invoke (eio_req *req)
409{ 419{
410 dSP;
411
412 if (req->flags & FLAG_SV2_RO_OFF) 420 if (req->flags & FLAG_SV2_RO_OFF)
413 SvREADONLY_off (req->sv2); 421 SvREADONLY_off (req->sv2);
414 422
415 if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback)) 423 if (!EIO_CANCELLED (req) && req->callback)
416 { 424 {
425 dSP;
426 static SV *sv_result_cache; /* caches the result integer SV */
427 SV *sv_result;
428
417 ENTER; 429 ENTER;
418 SAVETMPS; 430 SAVETMPS;
419 PUSHMARK (SP); 431 PUSHMARK (SP);
420 EXTEND (SP, 1); 432 EXTEND (SP, 1);
421 433
434 /* do not recreate the result IV from scratch each time */
435 if (expect_true (sv_result_cache))
436 {
437 sv_result = sv_result_cache; sv_result_cache = 0;
438 SvIV_set (sv_result, req->result);
439 SvIOK_only (sv_result);
440 }
441 else
442 {
443 sv_result = newSViv (req->result);
444 SvREADONLY_on (sv_result);
445 }
446
422 switch (req->type) 447 switch (req->type)
423 { 448 {
424 case REQ_READDIR: 449 case EIO_READDIR:
425 { 450 {
426 SV *rv = &PL_sv_undef; 451 SV *rv = &PL_sv_undef;
427 452
428 if (req->result >= 0) 453 if (req->result >= 0)
429 { 454 {
430 int i; 455 int i;
431 char *buf = req->ptr2; 456 char *names = (char *)req->ptr2;
457 eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
432 AV *av = newAV (); 458 AV *av = newAV ();
433 459
434 av_extend (av, req->result - 1); 460 av_extend (av, req->result - 1);
435 461
436 for (i = 0; i < req->result; ++i) 462 for (i = 0; i < req->result; ++i)
437 { 463 {
438 SV *sv = newSVpv (buf, 0); 464 if (req->int1 & EIO_READDIR_DENTS)
465 {
466 SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
439 467
468 if (req->int1 & EIO_READDIR_CUSTOM2)
469 {
470 static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
471 AV *avent = newAV ();
472
473 av_extend (avent, 2);
474
475 if (!sv_type [ent->type])
476 {
477 sv_type [ent->type] = newSViv (ent->type);
478 SvREADONLY_on (sv_type [ent->type]);
479 }
480
481 av_store (avent, 0, namesv);
482 av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
483 av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
484
485 av_store (av, i, newRV_noinc ((SV *)avent));
486 }
487 else
440 av_store (av, i, sv); 488 av_store (av, i, namesv);
489
490 ++ent;
491 }
492 else
493 {
494 SV *name = newSVpv (names, 0);
495 av_store (av, i, name);
441 buf += SvCUR (sv) + 1; 496 names += SvCUR (name) + 1;
497 }
442 } 498 }
443 499
444 rv = sv_2mortal (newRV_noinc ((SV *)av)); 500 rv = sv_2mortal (newRV_noinc ((SV *)av));
445 } 501 }
446 502
447 PUSHs (rv); 503 PUSHs (rv);
504
505 if (req->int1 & EIO_READDIR_CUSTOM1)
506 XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
448 } 507 }
449 break; 508 break;
450 509
451 case REQ_OPEN: 510 case EIO_OPEN:
452 { 511 {
453 /* convert fd to fh */ 512 /* convert fd to fh */
454 SV *fh; 513 SV *fh = &PL_sv_undef;
455 514
456 PUSHs (sv_2mortal (newSViv (req->result))); 515 if (req->result >= 0)
457 PUTBACK; 516 {
458 call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL); 517 GV *gv = (GV *)sv_newmortal ();
459 SPAGAIN; 518 int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
519 char sym [64];
520 int symlen;
521
522 symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
523 gv_init (gv, aio_stash, sym, symlen, 0);
460 524
461 fh = POPs; 525 symlen = snprintf (
462 PUSHMARK (SP); 526 sym,
527 sizeof (sym),
528 "%s&=%d",
529 flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
530 (int)req->result
531 );
532
533 if (do_open (gv, sym, symlen, 0, 0, 0, 0))
534 fh = (SV *)gv;
535 }
536
463 XPUSHs (fh); 537 PUSHs (fh);
464 } 538 }
465 break; 539 break;
466 540
541 case EIO_STATVFS:
542 case EIO_FSTATVFS:
543 {
544 SV *rv = &PL_sv_undef;
545
546 if (req->result >= 0)
547 {
548 EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
549 HV *hv = newHV ();
550
551 rv = sv_2mortal (newRV_noinc ((SV *)hv));
552
553 hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
554 hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
555 hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
556 hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
557 hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
558 hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
559 hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
560 hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
561 hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
562 hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
563 hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
564 }
565
566 PUSHs (rv);
567 }
568
569 break;
570
467 case REQ_GROUP: 571 case EIO_GROUP:
468 req->int1 = 2; /* mark group as finished */ 572 req->int1 = 2; /* mark group as finished */
469 573
470 if (req->sv1) 574 if (req->sv1)
471 { 575 {
472 int i; 576 int i;
… …
476 for (i = 0; i <= AvFILL (av); ++i) 580 for (i = 0; i <= AvFILL (av); ++i)
477 PUSHs (*av_fetch (av, i, 0)); 581 PUSHs (*av_fetch (av, i, 0));
478 } 582 }
479 break; 583 break;
480 584
481 case REQ_NOP: 585 case EIO_NOP:
482 case REQ_BUSY: 586 case EIO_BUSY:
483 break; 587 break;
484 588
485 case REQ_READLINK: 589 case EIO_READLINK:
486 if (req->result > 0) 590 if (req->result > 0)
487 { 591 PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
488 SvCUR_set (req->sv2, req->result);
489 *SvEND (req->sv2) = 0;
490 PUSHs (req->sv2);
491 }
492 break; 592 break;
493 593
494 case REQ_STAT: 594 case EIO_STAT:
495 case REQ_LSTAT: 595 case EIO_LSTAT:
496 case REQ_FSTAT: 596 case EIO_FSTAT:
497 PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT; 597 PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
498 PL_laststatval = req->result; 598 PL_laststatval = req->result;
499 PL_statcache = *(Stat_t *)(req->ptr2); 599 PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
500 PUSHs (sv_2mortal (newSViv (req->result))); 600 PUSHs (sv_result);
501 break; 601 break;
502 602
503 case REQ_READ: 603 case EIO_READ:
604 {
504 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0)); 605 SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
505 *SvEND (req->sv2) = 0; 606 *SvEND (req->sv2) = 0;
506 PUSHs (sv_2mortal (newSViv (req->result))); 607 SvPOK_only (req->sv2);
608 SvSETMAGIC (req->sv2);
609 PUSHs (sv_result);
610 }
507 break; 611 break;
508 612
613 case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
614 if (req->result > 0)
615 SvIV_set (sv_result, 0);
616 /* FALLTHROUGH */
617
509 default: 618 default:
510 PUSHs (sv_2mortal (newSViv (req->result))); 619 PUSHs (sv_result);
511 break; 620 break;
512 } 621 }
513 622
514 errno = req->errorno; 623 errno = req->errorno;
515 624
516 PUTBACK; 625 PUTBACK;
517 call_sv (req->callback, G_VOID | G_EVAL); 626 call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
518 SPAGAIN; 627 SPAGAIN;
628
629 if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
630 SvREFCNT_dec (sv_result);
631 else
632 sv_result_cache = sv_result;
519 633
520 FREETMPS; 634 FREETMPS;
521 LEAVE; 635 LEAVE;
636
637 PUTBACK;
522 } 638 }
523 639
524 if (req->grp)
525 {
526 aio_req grp = req->grp;
527
528 /* unlink request */
529 if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
530 if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
531
532 if (grp->grp_first == req)
533 grp->grp_first = req->grp_next;
534
535 aio_grp_dec (grp);
536 }
537
538 return !SvTRUE (ERRSV); 640 return !!SvTRUE (ERRSV);
539} 641}
540 642
541static void req_free (aio_req req) 643static void req_destroy (aio_req req)
542{ 644{
543 if (req->self) 645 if (req->self)
544 { 646 {
545 sv_unmagic (req->self, PERL_MAGIC_ext); 647 sv_unmagic (req->self, PERL_MAGIC_ext);
546 SvREFCNT_dec (req->self); 648 SvREFCNT_dec (req->self);
… …
548 650
549 SvREFCNT_dec (req->sv1); 651 SvREFCNT_dec (req->sv1);
550 SvREFCNT_dec (req->sv2); 652 SvREFCNT_dec (req->sv2);
551 SvREFCNT_dec (req->callback); 653 SvREFCNT_dec (req->callback);
552 654
553 if (req->flags & FLAG_PTR2_FREE)
554 free (req->ptr2);
555
556 Safefree (req); 655 Safefree (req);
557} 656}
558 657
559static void req_cancel_subs (aio_req grp) 658static void req_cancel_subs (aio_req grp)
560{ 659{
561 aio_req sub; 660 aio_req sub;
562 661
563 if (grp->type != REQ_GROUP) 662 if (grp->type != EIO_GROUP)
564 return; 663 return;
565 664
566 SvREFCNT_dec (grp->sv2); 665 SvREFCNT_dec (grp->sv2);
567 grp->sv2 = 0; 666 grp->sv2 = 0;
568 667
569 for (sub = grp->grp_first; sub; sub = sub->grp_next) 668 eio_grp_cancel (grp);
570 req_cancel (sub);
571} 669}
572 670
573static void req_cancel (aio_req req) 671static void
672create_respipe (void)
574{ 673{
575 req->flags |= FLAG_CANCELLED; 674 if (s_epipe_renew (&respipe))
576 675 croak ("IO::AIO: unable to initialize result pipe");
577 req_cancel_subs (req);
578} 676}
579 677
580static void *aio_proc(void *arg);
581
582static void start_thread (void)
583{
584 worker *wrk = calloc (1, sizeof (worker));
585
586 if (!wrk)
587 croak ("unable to allocate worker thread data");
588
589 LOCK (wrklock);
590
591 if (thread_create (&wrk->tid, aio_proc, (void *)wrk))
592 {
593 wrk->prev = &wrk_first;
594 wrk->next = wrk_first.next;
595 wrk_first.next->prev = wrk;
596 wrk_first.next = wrk;
597 ++started;
598 }
599 else
600 free (wrk);
601
602 UNLOCK (wrklock);
603}
604
605static void maybe_start_thread ()
606{
607 if (get_nthreads () >= wanted)
608 return;
609
610 /* todo: maybe use idle here, but might be less exact */
611 if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
612 return;
613
614 start_thread ();
615}
616
617static void req_send (aio_req req)
618{
619 block_sig ();
620
621 ++nreqs;
622
623 LOCK (reqlock);
624 ++nready;
625 reqq_push (&req_queue, req);
626 COND_SIGNAL (reqwait);
627 UNLOCK (reqlock);
628
629 unblock_sig ();
630
631 maybe_start_thread ();
632}
633
634static void end_thread (void)
635{
636 aio_req req;
637
638 Newz (0, req, 1, aio_cb);
639
640 req->type = REQ_QUIT;
641 req->pri = PRI_MAX + PRI_BIAS;
642
643 LOCK (reqlock);
644 reqq_push (&req_queue, req);
645 COND_SIGNAL (reqwait);
646 UNLOCK (reqlock);
647
648 LOCK (wrklock);
649 --started;
650 UNLOCK (wrklock);
651}
652
653static void set_max_idle (int nthreads)
654{
655 if (WORDACCESS_UNSAFE) LOCK (reqlock);
656 max_idle = nthreads <= 0 ? 1 : nthreads;
657 if (WORDACCESS_UNSAFE) UNLOCK (reqlock);
658}
659
660static void min_parallel (int nthreads)
661{
662 if (wanted < nthreads)
663 wanted = nthreads;
664}
665
666static void max_parallel (int nthreads)
667{
668 if (wanted > nthreads)
669 wanted = nthreads;
670
671 while (started > wanted)
672 end_thread ();
673}
674
675static void poll_wait () 678static void poll_wait (void)
676{ 679{
677 fd_set rfd;
678
679 while (nreqs) 680 while (eio_nreqs ())
680 { 681 {
681 int size; 682 int size;
682 if (WORDACCESS_UNSAFE) LOCK (reslock); 683
684 X_LOCK (reslock);
683 size = res_queue.size; 685 size = res_queue.size;
684 if (WORDACCESS_UNSAFE) UNLOCK (reslock); 686 X_UNLOCK (reslock);
685 687
686 if (size) 688 if (size)
687 return; 689 return;
688 690
689 maybe_start_thread (); 691 etp_maybe_start_thread ();
690 692
691 FD_ZERO(&rfd); 693 s_epipe_wait (&respipe);
692 FD_SET(respipe [0], &rfd);
693
694 select (respipe [0] + 1, &rfd, 0, 0, 0);
695 } 694 }
696} 695}
697 696
698static int poll_cb () 697static int poll_cb (void)
699{ 698{
700 dSP;
701 int count = 0;
702 int maxreqs = max_poll_reqs;
703 int do_croak = 0;
704 struct timeval tv_start, tv_now;
705 aio_req req;
706
707 if (max_poll_time)
708 gettimeofday (&tv_start, 0);
709
710 block_sig ();
711
712 for (;;) 699 for (;;)
713 { 700 {
714 for (;;) 701 int res = eio_poll ();
715 {
716 maybe_start_thread ();
717 702
718 LOCK (reslock); 703 if (res > 0)
719 req = reqq_shift (&res_queue);
720
721 if (req)
722 {
723 --npending;
724
725 if (!res_queue.size)
726 {
727 /* read any signals sent by the worker threads */
728 char buf [4];
729 while (read (respipe [0], buf, 4) == 4)
730 ;
731 }
732 }
733
734 UNLOCK (reslock);
735
736 if (!req)
737 break;
738
739 --nreqs;
740
741 if (req->type == REQ_GROUP && req->size)
742 {
743 req->int1 = 1; /* mark request as delayed */
744 continue;
745 }
746 else
747 {
748 if (!req_invoke (req))
749 {
750 req_free (req);
751 unblock_sig ();
752 croak (0); 704 croak (0);
753 }
754 705
755 count++; 706 if (!max_outstanding || max_outstanding > eio_nreqs ())
756 } 707 return res;
757
758 req_free (req);
759
760 if (maxreqs && !--maxreqs)
761 break;
762
763 if (max_poll_time)
764 {
765 gettimeofday (&tv_now, 0);
766
767 if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
768 break;
769 }
770 }
771
772 if (nreqs <= max_outstanding)
773 break;
774 708
775 poll_wait (); 709 poll_wait ();
776
777 ++maxreqs;
778 } 710 }
779
780 unblock_sig ();
781 return count;
782} 711}
783 712
784static void create_pipe () 713static void atfork_child (void)
785{ 714{
786 if (pipe (respipe)) 715 create_respipe ();
787 croak ("unable to initialize result pipe");
788
789 if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
790 croak ("cannot set result pipe to nonblocking mode");
791
792 if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
793 croak ("cannot set result pipe to nonblocking mode");
794} 716}
795 717
796/*****************************************************************************/ 718/*****************************************************************************/
797/* work around various missing functions */
798 719
799#if !HAVE_PREADWRITE 720#if !_POSIX_MAPPED_FILES
800# define pread aio_pread 721# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
801# define pwrite aio_pwrite 722# define munmap(addr,length) (errno = ENOSYS, -1)
802
803/*
804 * make our pread/pwrite safe against themselves, but not against
805 * normal read/write by using a mutex. slows down execution a lot,
806 * but that's your problem, not mine.
807 */
808static mutex_t preadwritelock = MUTEX_INIT;
809
810static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
811{
812 ssize_t res;
813 off_t ooffset;
814
815 LOCK (preadwritelock);
816 ooffset = lseek (fd, 0, SEEK_CUR);
817 lseek (fd, offset, SEEK_SET);
818 res = read (fd, buf, count);
819 lseek (fd, ooffset, SEEK_SET);
820 UNLOCK (preadwritelock);
821
822 return res;
823}
824
825static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
826{
827 ssize_t res;
828 off_t ooffset;
829
830 LOCK (preadwritelock);
831 ooffset = lseek (fd, 0, SEEK_CUR);
832 lseek (fd, offset, SEEK_SET);
833 res = write (fd, buf, count);
834 lseek (fd, offset, SEEK_SET);
835 UNLOCK (preadwritelock);
836
837 return res;
838}
839#endif
840
841#ifndef HAVE_FUTIMES
842
843# define utimes(path,times) aio_utimes (path, times)
844# define futimes(fd,times) aio_futimes (fd, times)
845
846int aio_utimes (const char *filename, const struct timeval times[2])
847{
848 if (times)
849 {
850 struct utimbuf buf;
851
852 buf.actime = times[0].tv_sec;
853 buf.modtime = times[1].tv_sec;
854
855 return utime (filename, &buf);
856 }
857 else
858 return utime (filename, 0);
859}
860
861int aio_futimes (int fd, const struct timeval tv[2])
862{
863 errno = ENOSYS;
864 return -1;
865}
866
867#endif
868
869#if !HAVE_FDATASYNC
870# define fdatasync fsync
871#endif
872
873#if !HAVE_READAHEAD
874# define readahead(fd,offset,count) aio_readahead (fd, offset, count, self)
875
876static ssize_t aio_readahead (int fd, off_t offset, size_t count, worker *self)
877{
878 dBUF;
879
880 while (count > 0)
881 {
882 size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
883
884 pread (fd, aio_buf, len, offset);
885 offset += len;
886 count -= len;
887 }
888
889 errno = 0;
890}
891
892#endif
893
894#if !HAVE_READDIR_R
895# define readdir_r aio_readdir_r
896
897static mutex_t readdirlock = MUTEX_INIT;
898
899static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
900{
901 struct dirent *e;
902 int errorno;
903
904 LOCK (readdirlock);
905
906 e = readdir (dirp);
907 errorno = errno;
908
909 if (e)
910 {
911 *res = ent;
912 strcpy (ent->d_name, e->d_name);
913 }
914 else
915 *res = 0;
916
917 UNLOCK (readdirlock);
918
919 errno = errorno;
920 return e ? 0 : -1;
921}
922#endif
923
924/* sendfile always needs emulation */
925static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
926{
927 ssize_t res;
928
929 if (!count)
930 return 0;
931
932#if HAVE_SENDFILE
933# if __linux
934 res = sendfile (ofd, ifd, &offset, count);
935
936# elif __freebsd
937 /*
938 * Of course, the freebsd sendfile is a dire hack with no thoughts
939 * wasted on making it similar to other I/O functions.
940 */
941 {
942 off_t sbytes;
943 res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
944
945 if (res < 0 && sbytes)
946 /* maybe only on EAGAIN: as usual, the manpage leaves you guessing */
947 res = sbytes;
948 }
949
950# elif __hpux
951 res = sendfile (ofd, ifd, offset, count, 0, 0);
952
953# elif __solaris
954 {
955 struct sendfilevec vec;
956 size_t sbytes;
957
958 vec.sfv_fd = ifd;
959 vec.sfv_flag = 0;
960 vec.sfv_off = offset;
961 vec.sfv_len = count;
962
963 res = sendfilev (ofd, &vec, 1, &sbytes);
964
965 if (res < 0 && sbytes)
966 res = sbytes;
967 }
968
969# endif 723#endif
970#else
971 res = -1;
972 errno = ENOSYS;
973#endif
974 724
975 if (res < 0 725#if !_POSIX_MEMORY_PROTECTION
976 && (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK 726# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
977#if __solaris 727# define PROT_NONE 0
978 || errno == EAFNOSUPPORT || errno == EPROTOTYPE 728# define PROT_WRITE 0
729# define MAP_PRIVATE 0
730# define MAP_SHARED 0
731# define MAP_FIXED 0
979#endif 732#endif
980 )
981 )
982 {
983 /* emulate sendfile. this is a major pain in the ass */
984 dBUF;
985 733
986 res = 0; 734#define MMAP_MAGIC PERL_MAGIC_ext
987 735
988 while (count) 736static int
989 { 737mmap_free (pTHX_ SV *sv, MAGIC *mg)
990 ssize_t cnt; 738{
991 739 int old_errno = errno;
992 cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset); 740 munmap (mg->mg_ptr, (size_t)mg->mg_obj);
741 errno = old_errno;
993 742
994 if (cnt <= 0) 743 mg->mg_obj = 0; /* just in case */
995 {
996 if (cnt && !res) res = -1;
997 break;
998 }
999 744
1000 cnt = write (ofd, aio_buf, cnt); 745 SvREADONLY_off (sv);
1001 746
1002 if (cnt <= 0) 747 if (SvPVX (sv) != mg->mg_ptr)
1003 { 748 croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
1004 if (cnt && !res) res = -1;
1005 break;
1006 }
1007 749
1008 offset += cnt; 750 SvCUR_set (sv, 0);
1009 res += cnt; 751 SvPVX (sv) = 0;
1010 count -= cnt; 752 SvOK_off (sv);
1011 }
1012 }
1013 753
1014 return res; 754 return 0;
1015} 755}
1016 756
1017/* read a full directory */ 757static MGVTBL mmap_vtbl = {
1018static void scandir_ (aio_req req, worker *self) 758 0, 0, 0, 0, mmap_free
1019{ 759};
1020 DIR *dirp;
1021 union
1022 {
1023 struct dirent d;
1024 char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
1025 } *u;
1026 struct dirent *entp;
1027 char *name, *names;
1028 int memlen = 4096;
1029 int memofs = 0;
1030 int res = 0;
1031 int errorno;
1032
1033 LOCK (wrklock);
1034 self->dirp = dirp = opendir (req->ptr1);
1035 self->dbuf = u = malloc (sizeof (*u));
1036 req->flags |= FLAG_PTR2_FREE;
1037 req->ptr2 = names = malloc (memlen);
1038 UNLOCK (wrklock);
1039
1040 if (dirp && u && names)
1041 for (;;)
1042 {
1043 errno = 0;
1044 readdir_r (dirp, &u->d, &entp);
1045
1046 if (!entp)
1047 break;
1048
1049 name = entp->d_name;
1050
1051 if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
1052 {
1053 int len = strlen (name) + 1;
1054
1055 res++;
1056
1057 while (memofs + len > memlen)
1058 {
1059 memlen *= 2;
1060 LOCK (wrklock);
1061 req->ptr2 = names = realloc (names, memlen);
1062 UNLOCK (wrklock);
1063
1064 if (!names)
1065 break;
1066 }
1067
1068 memcpy (names + memofs, name, len);
1069 memofs += len;
1070 }
1071 }
1072
1073 if (errno)
1074 res = -1;
1075
1076 req->result = res;
1077}
1078 760
1079/*****************************************************************************/ 761/*****************************************************************************/
1080 762
1081static void *aio_proc (void *thr_arg) 763static SV *
764get_cb (SV *cb_sv)
1082{ 765{
1083 aio_req req; 766 SvGETMAGIC (cb_sv);
1084 struct timespec ts; 767 return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
1085 worker *self = (worker *)thr_arg;
1086
1087 /* try to distribute timeouts somewhat evenly */
1088 ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)
1089 * (1000000000UL / 1024UL);
1090
1091 for (;;)
1092 {
1093 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1094
1095 LOCK (reqlock);
1096
1097 for (;;)
1098 {
1099 self->req = req = reqq_shift (&req_queue);
1100
1101 if (req)
1102 break;
1103
1104 ++idle;
1105
1106 if (COND_TIMEDWAIT (reqwait, reqlock, ts)
1107 == ETIMEDOUT)
1108 {
1109 if (idle > max_idle)
1110 {
1111 --idle;
1112 UNLOCK (reqlock);
1113 LOCK (wrklock);
1114 --started;
1115 UNLOCK (wrklock);
1116 goto quit;
1117 }
1118
1119 /* we are allowed to idle, so do so without any timeout */
1120 COND_WAIT (reqwait, reqlock);
1121 ts.tv_sec = time (0) + IDLE_TIMEOUT;
1122 }
1123
1124 --idle;
1125 }
1126
1127 --nready;
1128
1129 UNLOCK (reqlock);
1130
1131 errno = 0; /* strictly unnecessary */
1132
1133 if (!(req->flags & FLAG_CANCELLED))
1134 switch (req->type)
1135 {
1136 case REQ_READ: req->result = pread (req->int1, req->ptr1, req->size, req->offs); break;
1137 case REQ_WRITE: req->result = pwrite (req->int1, req->ptr1, req->size, req->offs); break;
1138
1139 case REQ_READAHEAD: req->result = readahead (req->int1, req->offs, req->size); break;
1140 case REQ_SENDFILE: req->result = sendfile_ (req->int1, req->int2, req->offs, req->size, self); break;
1141
1142 case REQ_STAT: req->result = stat (req->ptr1, (Stat_t *)req->ptr2); break;
1143 case REQ_LSTAT: req->result = lstat (req->ptr1, (Stat_t *)req->ptr2); break;
1144 case REQ_FSTAT: req->result = fstat (req->int1, (Stat_t *)req->ptr2); break;
1145
1146 case REQ_CHOWN: req->result = chown (req->ptr1, req->int2, req->int3); break;
1147 case REQ_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break;
1148 case REQ_CHMOD: req->result = chmod (req->ptr1, req->mode); break;
1149 case REQ_FCHMOD: req->result = fchmod (req->int1, req->mode); break;
1150
1151 case REQ_OPEN: req->result = open (req->ptr1, req->int1, req->mode); break;
1152 case REQ_CLOSE: req->result = close (req->int1); break;
1153 case REQ_UNLINK: req->result = unlink (req->ptr1); break;
1154 case REQ_RMDIR: req->result = rmdir (req->ptr1); break;
1155 case REQ_MKDIR: req->result = mkdir (req->ptr1, req->mode); break;
1156 case REQ_RENAME: req->result = rename (req->ptr2, req->ptr1); break;
1157 case REQ_LINK: req->result = link (req->ptr2, req->ptr1); break;
1158 case REQ_SYMLINK: req->result = symlink (req->ptr2, req->ptr1); break;
1159 case REQ_MKNOD: req->result = mknod (req->ptr2, req->mode, (dev_t)req->offs); break;
1160 case REQ_READLINK: req->result = readlink (req->ptr2, req->ptr1, NAME_MAX); break;
1161
1162 case REQ_FDATASYNC: req->result = fdatasync (req->int1); break;
1163 case REQ_FSYNC: req->result = fsync (req->int1); break;
1164 case REQ_READDIR: scandir_ (req, self); break;
1165
1166 case REQ_BUSY:
1167 {
1168 struct timeval tv;
1169
1170 tv.tv_sec = req->nv1;
1171 tv.tv_usec = (req->nv1 - tv.tv_usec) * 1000000.;
1172
1173 req->result = select (0, 0, 0, 0, &tv);
1174 }
1175
1176 case REQ_UTIME:
1177 case REQ_FUTIME:
1178 {
1179 struct timeval tv[2];
1180 struct timeval *times;
1181
1182 if (req->nv1 != -1. || req->nv2 != -1.)
1183 {
1184 tv[0].tv_sec = req->nv1;
1185 tv[0].tv_usec = (req->nv1 - tv[0].tv_sec) * 1000000.;
1186 tv[1].tv_sec = req->nv2;
1187 tv[1].tv_usec = (req->nv2 - tv[1].tv_sec) * 1000000.;
1188
1189 times = tv;
1190 }
1191 else
1192 times = 0;
1193
1194
1195 req->result = req->type == REQ_FUTIME
1196 ? futimes (req->int1, times)
1197 : utimes (req->ptr1, times);
1198 }
1199
1200 case REQ_GROUP:
1201 case REQ_NOP:
1202 break;
1203
1204 case REQ_QUIT:
1205 goto quit;
1206
1207 default:
1208 req->result = -1;
1209 break;
1210 }
1211
1212 req->errorno = errno;
1213
1214 LOCK (reslock);
1215
1216 ++npending;
1217
1218 if (!reqq_push (&res_queue, req))
1219 {
1220 /* write a dummy byte to the pipe so fh becomes ready */
1221 write (respipe [1], &respipe, 1);
1222
1223 /* optionally signal the main thread asynchronously */
1224 if (main_sig)
1225 pthread_kill (main_tid, main_sig);
1226 }
1227
1228 self->req = 0;
1229 worker_clear (self);
1230
1231 UNLOCK (reslock);
1232 }
1233
1234quit:
1235 LOCK (wrklock);
1236 worker_free (self);
1237 UNLOCK (wrklock);
1238
1239 return 0;
1240}
1241
1242/*****************************************************************************/
1243
1244static void atfork_prepare (void)
1245{
1246 LOCK (wrklock);
1247 LOCK (reqlock);
1248 LOCK (reslock);
1249#if !HAVE_PREADWRITE
1250 LOCK (preadwritelock);
1251#endif
1252#if !HAVE_READDIR_R
1253 LOCK (readdirlock);
1254#endif
1255}
1256
1257static void atfork_parent (void)
1258{
1259#if !HAVE_READDIR_R
1260 UNLOCK (readdirlock);
1261#endif
1262#if !HAVE_PREADWRITE
1263 UNLOCK (preadwritelock);
1264#endif
1265 UNLOCK (reslock);
1266 UNLOCK (reqlock);
1267 UNLOCK (wrklock);
1268}
1269
1270static void atfork_child (void)
1271{
1272 aio_req prv;
1273
1274 while (prv = reqq_shift (&req_queue))
1275 req_free (prv);
1276
1277 while (prv = reqq_shift (&res_queue))
1278 req_free (prv);
1279
1280 while (wrk_first.next != &wrk_first)
1281 {
1282 worker *wrk = wrk_first.next;
1283
1284 if (wrk->req)
1285 req_free (wrk->req);
1286
1287 worker_clear (wrk);
1288 worker_free (wrk);
1289 }
1290
1291 started = 0;
1292 idle = 0;
1293 nreqs = 0;
1294 nready = 0;
1295 npending = 0;
1296
1297 close (respipe [0]);
1298 close (respipe [1]);
1299 create_pipe ();
1300
1301 atfork_parent ();
1302} 768}
1303 769
1304#define dREQ \ 770#define dREQ \
771 SV *cb_cv; \
1305 aio_req req; \ 772 aio_req req; \
1306 int req_pri = next_pri; \ 773 int req_pri = next_pri; \
1307 next_pri = DEFAULT_PRI + PRI_BIAS; \ 774 next_pri = EIO_PRI_DEFAULT; \
1308 \ 775 \
1309 if (SvOK (callback) && !SvROK (callback)) \ 776 cb_cv = get_cb (callback); \
1310 croak ("callback must be undef or of reference type"); \
1311 \ 777 \
1312 Newz (0, req, 1, aio_cb); \ 778 Newz (0, req, 1, eio_req); \
1313 if (!req) \ 779 if (!req) \
1314 croak ("out of memory during aio_req allocation"); \ 780 croak ("out of memory during eio_req allocation"); \
1315 \ 781 \
1316 req->callback = newSVsv (callback); \ 782 req->callback = SvREFCNT_inc (cb_cv); \
1317 req->pri = req_pri 783 req->pri = req_pri
1318 784
1319#define REQ_SEND \ 785#define REQ_SEND \
786 PUTBACK; \
1320 req_send (req); \ 787 req_submit (req); \
788 SPAGAIN; \
1321 \ 789 \
1322 if (GIMME_V != G_VOID) \ 790 if (GIMME_V != G_VOID) \
1323 XPUSHs (req_sv (req, AIO_REQ_KLASS)); 791 XPUSHs (req_sv (req, aio_req_stash));
1324 792
1325MODULE = IO::AIO PACKAGE = IO::AIO 793MODULE = IO::AIO PACKAGE = IO::AIO
1326 794
1327PROTOTYPES: ENABLE 795PROTOTYPES: ENABLE
1328 796
1329BOOT: 797BOOT:
1330{ 798{
799 static const struct {
800 const char *name;
801 IV iv;
802 } *civ, const_iv[] = {
803# define const_niv(name, value) { # name, (IV) value },
804# define const_iv(name) { # name, (IV) name },
805# define const_eio(name) { # name, (IV) EIO_ ## name },
806 const_iv (EXDEV)
807 const_iv (ENOSYS)
808 const_iv (O_RDONLY)
809 const_iv (O_WRONLY)
810 const_iv (O_RDWR)
811 const_iv (O_CREAT)
812 const_iv (O_TRUNC)
813 const_iv (O_EXCL)
814 const_iv (O_APPEND)
815
816 const_iv (O_ASYNC)
817 const_iv (O_DIRECT)
818 const_iv (O_NOATIME)
819
820 const_iv (O_CLOEXEC)
821 const_iv (O_NOCTTY)
822 const_iv (O_NOFOLLOW)
823 const_iv (O_NONBLOCK)
824 const_iv (O_EXEC)
825 const_iv (O_SEARCH)
826 const_iv (O_DIRECTORY)
827 const_iv (O_DSYNC)
828 const_iv (O_RSYNC)
829 const_iv (O_SYNC)
830 const_iv (O_TTY_INIT)
831
832 const_iv (S_IFIFO)
833 const_iv (S_IFCHR)
834 const_iv (S_IFBLK)
835 const_iv (S_IFLNK)
836 const_iv (S_IFREG)
837 const_iv (S_IFDIR)
838 const_iv (S_IFWHT)
839 const_iv (S_IFSOCK)
840 const_iv (S_IFMT)
841
842 const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
843 const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
844 const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
845 const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
846 const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
847 const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
848
849 const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
850 const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
851 const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
852 const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
853 const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
854
855 const_iv (ST_RDONLY)
856 const_iv (ST_NOSUID)
857 const_iv (ST_NODEV)
858 const_iv (ST_NOEXEC)
859 const_iv (ST_SYNCHRONOUS)
860 const_iv (ST_MANDLOCK)
861 const_iv (ST_WRITE)
862 const_iv (ST_APPEND)
863 const_iv (ST_IMMUTABLE)
864 const_iv (ST_NOATIME)
865 const_iv (ST_NODIRATIME)
866 const_iv (ST_RELATIME)
867
868 const_iv (PROT_NONE)
869 const_iv (PROT_EXEC)
870 const_iv (PROT_READ)
871 const_iv (PROT_WRITE)
872
873 /*const_iv (MAP_FIXED)*/
874 const_iv (MAP_PRIVATE)
875 const_iv (MAP_SHARED)
876 const_iv (MAP_ANONYMOUS)
877
878 /* linuxish */
879 const_iv (MAP_HUGETLB)
880 const_iv (MAP_LOCKED)
881 const_iv (MAP_NORESERVE)
882 const_iv (MAP_POPULATE)
883 const_iv (MAP_NONBLOCK)
884
885 const_eio (MCL_FUTURE)
886 const_eio (MCL_CURRENT)
887
888 const_eio (MS_ASYNC)
889 const_eio (MS_INVALIDATE)
890 const_eio (MS_SYNC)
891
892 const_eio (MT_MODIFY)
893
894 const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
895 const_eio (SYNC_FILE_RANGE_WRITE)
896 const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
897
898 const_eio (READDIR_DENTS)
899 const_eio (READDIR_DIRS_FIRST)
900 const_eio (READDIR_STAT_ORDER)
901 const_eio (READDIR_FOUND_UNKNOWN)
902
903 const_eio (DT_UNKNOWN)
904 const_eio (DT_FIFO)
905 const_eio (DT_CHR)
906 const_eio (DT_DIR)
907 const_eio (DT_BLK)
908 const_eio (DT_REG)
909 const_eio (DT_LNK)
910 const_eio (DT_SOCK)
911 const_eio (DT_WHT)
912 };
913
1331 HV *stash = gv_stashpv ("IO::AIO", 1); 914 aio_stash = gv_stashpv ("IO::AIO" , 1);
915 aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
916 aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
1332 917
1333 newCONSTSUB (stash, "EXDEV", newSViv (EXDEV)); 918 for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
1334 newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY)); 919 newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
1335 newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
1336 newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
1337 newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
1338 newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
1339 newCONSTSUB (stash, "SIGIO", newSViv (SIGIO));
1340 920
921 newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
922
1341 create_pipe (); 923 create_respipe ();
1342 ATFORK (atfork_prepare, atfork_parent, atfork_child);
1343}
1344 924
925 if (eio_init (want_poll, done_poll) < 0)
926 croak ("IO::AIO: unable to initialise eio library");
927
928 /* atfork child called in fifo order, so before eio's handler */
929 X_THREAD_ATFORK (0, 0, atfork_child);
930}
931
1345void 932void
1346max_poll_reqs (int nreqs) 933max_poll_reqs (unsigned int nreqs)
1347 PROTOTYPE: $ 934 PROTOTYPE: $
1348 CODE: 935 CODE:
1349 max_poll_reqs = nreqs; 936 eio_set_max_poll_reqs (nreqs);
1350 937
1351void 938void
1352max_poll_time (double nseconds) 939max_poll_time (double nseconds)
1353 PROTOTYPE: $ 940 PROTOTYPE: $
1354 CODE: 941 CODE:
1355 max_poll_time = nseconds * AIO_TICKS; 942 eio_set_max_poll_time (nseconds);
1356 943
1357void 944void
1358min_parallel (int nthreads) 945min_parallel (unsigned int nthreads)
1359 PROTOTYPE: $
1360
1361void
1362max_parallel (int nthreads)
1363 PROTOTYPE: $
1364
1365void
1366max_idle (int nthreads)
1367 PROTOTYPE: $ 946 PROTOTYPE: $
1368 CODE: 947 CODE:
1369 set_max_idle (nthreads); 948 eio_set_min_parallel (nthreads);
1370 949
1371int 950void
1372max_outstanding (int maxreqs) 951max_parallel (unsigned int nthreads)
1373 PROTOTYPE: $ 952 PROTOTYPE: $
1374 CODE: 953 CODE:
1375 RETVAL = max_outstanding; 954 eio_set_max_parallel (nthreads);
955
956void
957max_idle (unsigned int nthreads)
958 PROTOTYPE: $
959 CODE:
960 eio_set_max_idle (nthreads);
961
962void
963idle_timeout (unsigned int seconds)
964 PROTOTYPE: $
965 CODE:
966 eio_set_idle_timeout (seconds);
967
968void
969max_outstanding (unsigned int maxreqs)
970 PROTOTYPE: $
971 CODE:
1376 max_outstanding = maxreqs; 972 max_outstanding = maxreqs;
1377 OUTPUT:
1378 RETVAL
1379 973
1380void 974void
1381aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef) 975aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
1382 PROTOTYPE: $$$;$
1383 PPCODE: 976 PPCODE:
1384{ 977{
1385 dREQ; 978 dREQ;
1386 979
1387 req->type = REQ_OPEN; 980 req->type = EIO_OPEN;
1388 req->sv1 = newSVsv (pathname); 981 req->sv1 = newSVsv (pathname);
1389 req->ptr1 = SvPVbyte_nolen (req->sv1); 982 req->ptr1 = SvPVbyte_nolen (req->sv1);
1390 req->int1 = flags; 983 req->int1 = flags;
1391 req->mode = mode; 984 req->int2 = mode;
1392 985
1393 REQ_SEND; 986 REQ_SEND;
1394} 987}
1395 988
1396void 989void
1397aio_close (SV *fh, SV *callback=&PL_sv_undef) 990aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
1398 PROTOTYPE: $;$
1399 ALIAS: 991 ALIAS:
1400 aio_close = REQ_CLOSE
1401 aio_fsync = REQ_FSYNC 992 aio_fsync = EIO_FSYNC
1402 aio_fdatasync = REQ_FDATASYNC 993 aio_fdatasync = EIO_FDATASYNC
1403 PPCODE: 994 PPCODE:
1404{ 995{
996 int fd = s_fileno_croak (fh, 0);
1405 dREQ; 997 dREQ;
1406 998
1407 req->type = ix; 999 req->type = ix;
1408 req->sv1 = newSVsv (fh); 1000 req->sv1 = newSVsv (fh);
1409 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1001 req->int1 = fd;
1410 1002
1411 REQ_SEND (req); 1003 REQ_SEND (req);
1412} 1004}
1413 1005
1414void 1006void
1007aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1008 PPCODE:
1009{
1010 int fd = s_fileno_croak (fh, 0);
1011 dREQ;
1012
1013 req->type = EIO_SYNC_FILE_RANGE;
1014 req->sv1 = newSVsv (fh);
1015 req->int1 = fd;
1016 req->offs = offset;
1017 req->size = nbytes;
1018 req->int2 = flags;
1019
1020 REQ_SEND (req);
1021}
1022
1023void
1024aio_close (SV *fh, SV *callback=&PL_sv_undef)
1025 PPCODE:
1026{
1027 static int close_pipe = -1; /* dummy fd to close fds via dup2 */
1028 int fd = s_fileno_croak (fh, 0);
1029 dREQ;
1030
1031 if (close_pipe < 0)
1032 {
1033 int pipefd [2];
1034
1035 if (pipe (pipefd) < 0
1036 || close (pipefd [1]) < 0
1037 || fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
1038 abort (); /*D*/
1039
1040 close_pipe = pipefd [0];
1041 }
1042
1043 req->type = EIO_DUP2;
1044 req->int1 = close_pipe;
1045 req->sv2 = newSVsv (fh);
1046 req->int2 = fd;
1047
1048 REQ_SEND (req);
1049}
1050
1051void
1415aio_read (SV *fh, UV offset, UV length, SV8 *data, UV dataoffset, SV *callback=&PL_sv_undef) 1052aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1416 ALIAS: 1053 ALIAS:
1417 aio_read = REQ_READ 1054 aio_read = EIO_READ
1418 aio_write = REQ_WRITE 1055 aio_write = EIO_WRITE
1419 PROTOTYPE: $$$$$;$
1420 PPCODE: 1056 PPCODE:
1421{ 1057{
1422 STRLEN svlen; 1058 STRLEN svlen;
1059 int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1423 char *svptr = SvPVbyte (data, svlen); 1060 char *svptr = SvPVbyte (data, svlen);
1424 1061 UV len = SvUV (length);
1425 SvUPGRADE (data, SVt_PV);
1426 SvPOK_on (data);
1427 1062
1428 if (dataoffset < 0) 1063 if (dataoffset < 0)
1429 dataoffset += svlen; 1064 dataoffset += svlen;
1430 1065
1431 if (dataoffset < 0 || dataoffset > svlen) 1066 if (dataoffset < 0 || dataoffset > svlen)
1432 croak ("data offset outside of string"); 1067 croak ("dataoffset outside of data scalar");
1433 1068
1434 if (ix == REQ_WRITE) 1069 if (ix == EIO_WRITE)
1435 { 1070 {
1436 /* write: check length and adjust. */ 1071 /* write: check length and adjust. */
1437 if (length < 0 || length + dataoffset > svlen) 1072 if (!SvOK (length) || len + dataoffset > svlen)
1438 length = svlen - dataoffset; 1073 len = svlen - dataoffset;
1439 } 1074 }
1440 else 1075 else
1441 { 1076 {
1442 /* read: grow scalar as necessary */ 1077 /* read: check type and grow scalar as necessary */
1078 SvUPGRADE (data, SVt_PV);
1443 svptr = SvGROW (data, length + dataoffset + 1); 1079 svptr = SvGROW (data, len + dataoffset + 1);
1444 } 1080 }
1445
1446 if (length < 0)
1447 croak ("length must not be negative");
1448 1081
1449 { 1082 {
1450 dREQ; 1083 dREQ;
1451 1084
1452 req->type = ix; 1085 req->type = ix;
1453 req->sv1 = newSVsv (fh); 1086 req->sv1 = newSVsv (fh);
1454 req->int1 = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh)) 1087 req->int1 = fd;
1455 : IoOFP (sv_2io (fh))); 1088 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1456 req->offs = offset;
1457 req->size = length; 1089 req->size = len;
1458 req->sv2 = SvREFCNT_inc (data); 1090 req->sv2 = SvREFCNT_inc (data);
1459 req->ptr1 = (char *)svptr + dataoffset; 1091 req->ptr2 = (char *)svptr + dataoffset;
1460 req->stroffset = dataoffset; 1092 req->stroffset = dataoffset;
1461 1093
1462 if (!SvREADONLY (data)) 1094 if (!SvREADONLY (data))
1463 { 1095 {
1464 SvREADONLY_on (data); 1096 SvREADONLY_on (data);
… …
1469 } 1101 }
1470} 1102}
1471 1103
1472void 1104void
1473aio_readlink (SV8 *path, SV *callback=&PL_sv_undef) 1105aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
1474 PROTOTYPE: $$;$
1475 PPCODE: 1106 PPCODE:
1476{ 1107{
1477 SV *data; 1108 SV *data;
1478 dREQ; 1109 dREQ;
1479 1110
1480 data = newSV (NAME_MAX);
1481 SvPOK_on (data);
1482
1483 req->type = REQ_READLINK; 1111 req->type = EIO_READLINK;
1484 req->sv1 = newSVsv (path); 1112 req->sv1 = newSVsv (path);
1485 req->ptr2 = SvPVbyte_nolen (req->sv1); 1113 req->ptr1 = SvPVbyte_nolen (req->sv1);
1486 req->sv2 = data;
1487 req->ptr1 = SvPVbyte_nolen (data);
1488 1114
1489 REQ_SEND; 1115 REQ_SEND;
1490} 1116}
1491 1117
1492void 1118void
1493aio_sendfile (SV *out_fh, SV *in_fh, UV in_offset, UV length, SV *callback=&PL_sv_undef) 1119aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1494 PROTOTYPE: $$$$;$
1495 PPCODE: 1120 PPCODE:
1496{ 1121{
1122 int ifd = s_fileno_croak (in_fh , 0);
1123 int ofd = s_fileno_croak (out_fh, 1);
1497 dREQ; 1124 dREQ;
1498 1125
1499 req->type = REQ_SENDFILE; 1126 req->type = EIO_SENDFILE;
1500 req->sv1 = newSVsv (out_fh); 1127 req->sv1 = newSVsv (out_fh);
1501 req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh))); 1128 req->int1 = ofd;
1502 req->sv2 = newSVsv (in_fh); 1129 req->sv2 = newSVsv (in_fh);
1503 req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh))); 1130 req->int2 = ifd;
1504 req->offs = in_offset; 1131 req->offs = in_offset;
1505 req->size = length; 1132 req->size = length;
1506 1133
1507 REQ_SEND; 1134 REQ_SEND;
1508} 1135}
1509 1136
1510void 1137void
1511aio_readahead (SV *fh, UV offset, IV length, SV *callback=&PL_sv_undef) 1138aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1512 PROTOTYPE: $$$;$
1513 PPCODE: 1139 PPCODE:
1514{ 1140{
1141 int fd = s_fileno_croak (fh, 0);
1515 dREQ; 1142 dREQ;
1516 1143
1517 req->type = REQ_READAHEAD; 1144 req->type = EIO_READAHEAD;
1518 req->sv1 = newSVsv (fh); 1145 req->sv1 = newSVsv (fh);
1519 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh))); 1146 req->int1 = fd;
1520 req->offs = offset; 1147 req->offs = offset;
1521 req->size = length; 1148 req->size = length;
1522 1149
1523 REQ_SEND; 1150 REQ_SEND;
1524} 1151}
1525 1152
1526void 1153void
1527aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef) 1154aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1528 ALIAS: 1155 ALIAS:
1529 aio_stat = REQ_STAT 1156 aio_stat = EIO_STAT
1530 aio_lstat = REQ_LSTAT 1157 aio_lstat = EIO_LSTAT
1158 aio_statvfs = EIO_STATVFS
1531 PPCODE: 1159 PPCODE:
1532{ 1160{
1533 dREQ; 1161 dREQ;
1534 1162
1535 req->ptr2 = malloc (sizeof (Stat_t));
1536 if (!req->ptr2)
1537 {
1538 req_free (req);
1539 croak ("out of memory during aio_stat statdata allocation");
1540 }
1541
1542 req->flags |= FLAG_PTR2_FREE;
1543 req->sv1 = newSVsv (fh_or_path); 1163 req->sv1 = newSVsv (fh_or_path);
1544 1164
1545 if (SvPOK (fh_or_path)) 1165 if (SvPOK (req->sv1))
1546 { 1166 {
1547 req->type = ix; 1167 req->type = ix;
1548 req->ptr1 = SvPVbyte_nolen (req->sv1); 1168 req->ptr1 = SvPVbyte_nolen (req->sv1);
1549 } 1169 }
1550 else 1170 else
1551 { 1171 {
1552 req->type = REQ_FSTAT; 1172 req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1553 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1173 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1554 } 1174 }
1555 1175
1556 REQ_SEND; 1176 REQ_SEND;
1557} 1177}
1178
1179UV
1180major (UV dev)
1181 ALIAS:
1182 minor = 1
1183 CODE:
1184 RETVAL = ix ? major (dev) : minor (dev);
1185 OUTPUT:
1186 RETVAL
1187
1188UV
1189makedev (UV maj, UV min)
1190 CODE:
1191 RETVAL = makedev (maj, min);
1192 OUTPUT:
1193 RETVAL
1558 1194
1559void 1195void
1560aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef) 1196aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1561 PPCODE: 1197 PPCODE:
1562{ 1198{
… …
1564 1200
1565 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.; 1201 req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1566 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.; 1202 req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1567 req->sv1 = newSVsv (fh_or_path); 1203 req->sv1 = newSVsv (fh_or_path);
1568 1204
1569 if (SvPOK (fh_or_path)) 1205 if (SvPOK (req->sv1))
1570 { 1206 {
1571 req->type = REQ_UTIME; 1207 req->type = EIO_UTIME;
1572 req->ptr1 = SvPVbyte_nolen (req->sv1); 1208 req->ptr1 = SvPVbyte_nolen (req->sv1);
1573 } 1209 }
1574 else 1210 else
1575 { 1211 {
1576 req->type = REQ_FUTIME; 1212 req->type = EIO_FUTIME;
1577 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1213 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1578 } 1214 }
1579 1215
1580 REQ_SEND; 1216 REQ_SEND;
1581} 1217}
1582 1218
1583void 1219void
1584aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef) 1220aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1585 PPCODE: 1221 PPCODE:
1586{ 1222{
1587 dREQ; 1223 dREQ;
1588 1224
1589 req->mode = mode;
1590 req->sv1 = newSVsv (fh_or_path); 1225 req->sv1 = newSVsv (fh_or_path);
1226 req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1591 1227
1592 if (SvPOK (fh_or_path)) 1228 if (SvPOK (req->sv1))
1593 { 1229 {
1594 req->type = REQ_CHMOD; 1230 req->type = EIO_TRUNCATE;
1595 req->ptr1 = SvPVbyte_nolen (req->sv1); 1231 req->ptr1 = SvPVbyte_nolen (req->sv1);
1596 } 1232 }
1597 else 1233 else
1598 { 1234 {
1599 req->type = REQ_FCHMOD; 1235 req->type = EIO_FTRUNCATE;
1600 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1236 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1601 } 1237 }
1602 1238
1603 REQ_SEND; 1239 REQ_SEND;
1604} 1240}
1605 1241
1606void 1242void
1607aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef) 1243aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1244 ALIAS:
1245 aio_chmod = EIO_CHMOD
1246 aio_mkdir = EIO_MKDIR
1608 PPCODE: 1247 PPCODE:
1609{ 1248{
1610 dREQ; 1249 dREQ;
1611 1250
1612 req->int2 = SvOK (uid) ? SvIV (uid) : -1; 1251 req->int2 = mode;
1613 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1614 req->sv1 = newSVsv (fh_or_path); 1252 req->sv1 = newSVsv (fh_or_path);
1615 1253
1616 if (SvPOK (fh_or_path)) 1254 if (SvPOK (req->sv1))
1617 { 1255 {
1618 req->type = REQ_CHOWN; 1256 req->type = ix;
1619 req->ptr1 = SvPVbyte_nolen (req->sv1); 1257 req->ptr1 = SvPVbyte_nolen (req->sv1);
1620 } 1258 }
1621 else 1259 else
1622 { 1260 {
1623 req->type = REQ_FCHOWN; 1261 req->type = EIO_FCHMOD;
1624 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path))); 1262 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1625 } 1263 }
1626 1264
1627 REQ_SEND; 1265 REQ_SEND;
1628} 1266}
1629 1267
1630void 1268void
1269aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
1270 PPCODE:
1271{
1272 dREQ;
1273
1274 req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1275 req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1276 req->sv1 = newSVsv (fh_or_path);
1277
1278 if (SvPOK (req->sv1))
1279 {
1280 req->type = EIO_CHOWN;
1281 req->ptr1 = SvPVbyte_nolen (req->sv1);
1282 }
1283 else
1284 {
1285 req->type = EIO_FCHOWN;
1286 req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1287 }
1288
1289 REQ_SEND;
1290}
1291
1292void
1293aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
1294 PPCODE:
1295{
1296 dREQ;
1297
1298 req->type = EIO_READDIR;
1299 req->sv1 = newSVsv (pathname);
1300 req->ptr1 = SvPVbyte_nolen (req->sv1);
1301 req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1302
1303 if (flags & EIO_READDIR_DENTS)
1304 req->int1 |= EIO_READDIR_CUSTOM2;
1305
1306 REQ_SEND;
1307}
1308
1309void
1631aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef) 1310aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1632 ALIAS: 1311 ALIAS:
1633 aio_unlink = REQ_UNLINK 1312 aio_unlink = EIO_UNLINK
1634 aio_rmdir = REQ_RMDIR 1313 aio_rmdir = EIO_RMDIR
1635 aio_readdir = REQ_READDIR 1314 aio_readdir = EIO_READDIR
1636 PPCODE: 1315 PPCODE:
1637{ 1316{
1638 dREQ; 1317 dREQ;
1639 1318
1640 req->type = ix; 1319 req->type = ix;
… …
1643 1322
1644 REQ_SEND; 1323 REQ_SEND;
1645} 1324}
1646 1325
1647void 1326void
1648aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
1649 PPCODE:
1650{
1651 dREQ;
1652
1653 req->type = REQ_MKDIR;
1654 req->sv1 = newSVsv (pathname);
1655 req->ptr1 = SvPVbyte_nolen (req->sv1);
1656 req->mode = mode;
1657
1658 REQ_SEND;
1659}
1660
1661void
1662aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef) 1327aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
1663 ALIAS: 1328 ALIAS:
1664 aio_link = REQ_LINK 1329 aio_link = EIO_LINK
1665 aio_symlink = REQ_SYMLINK 1330 aio_symlink = EIO_SYMLINK
1666 aio_rename = REQ_RENAME 1331 aio_rename = EIO_RENAME
1667 PPCODE: 1332 PPCODE:
1668{ 1333{
1669 dREQ; 1334 dREQ;
1670 1335
1671 req->type = ix; 1336 req->type = ix;
1672 req->sv2 = newSVsv (oldpath); 1337 req->sv1 = newSVsv (oldpath);
1338 req->ptr1 = SvPVbyte_nolen (req->sv1);
1339 req->sv2 = newSVsv (newpath);
1673 req->ptr2 = SvPVbyte_nolen (req->sv2); 1340 req->ptr2 = SvPVbyte_nolen (req->sv2);
1674 req->sv1 = newSVsv (newpath);
1675 req->ptr1 = SvPVbyte_nolen (req->sv1);
1676 1341
1677 REQ_SEND; 1342 REQ_SEND;
1678} 1343}
1679 1344
1680void 1345void
1681aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef) 1346aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1682 PPCODE: 1347 PPCODE:
1683{ 1348{
1684 dREQ; 1349 dREQ;
1685 1350
1686 req->type = REQ_MKNOD; 1351 req->type = EIO_MKNOD;
1687 req->sv1 = newSVsv (pathname); 1352 req->sv1 = newSVsv (pathname);
1688 req->ptr1 = SvPVbyte_nolen (req->sv1); 1353 req->ptr1 = SvPVbyte_nolen (req->sv1);
1689 req->mode = (mode_t)mode; 1354 req->int2 = (mode_t)mode;
1690 req->offs = dev; 1355 req->offs = dev;
1691 1356
1692 REQ_SEND; 1357 REQ_SEND;
1693} 1358}
1694 1359
1695void 1360void
1361aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1362 ALIAS:
1363 aio_mtouch = EIO_MTOUCH
1364 aio_msync = EIO_MSYNC
1365 PPCODE:
1366{
1367 STRLEN svlen;
1368 char *svptr = SvPVbyte (data, svlen);
1369 UV len = SvUV (length);
1370
1371 if (offset < 0)
1372 offset += svlen;
1373
1374 if (offset < 0 || offset > svlen)
1375 croak ("offset outside of scalar");
1376
1377 if (!SvOK (length) || len + offset > svlen)
1378 len = svlen - offset;
1379
1380 {
1381 dREQ;
1382
1383 req->type = ix;
1384 req->sv2 = SvREFCNT_inc (data);
1385 req->ptr2 = (char *)svptr + offset;
1386 req->size = len;
1387 req->int1 = flags;
1388
1389 REQ_SEND;
1390 }
1391}
1392
1393void
1394aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
1395 PPCODE:
1396{
1397 STRLEN svlen;
1398 char *svptr = SvPVbyte (data, svlen);
1399 UV len = SvUV (length);
1400
1401 if (offset < 0)
1402 offset += svlen;
1403
1404 if (offset < 0 || offset > svlen)
1405 croak ("offset outside of scalar");
1406
1407 if (!SvOK (length) || len + offset > svlen)
1408 len = svlen - offset;
1409
1410 {
1411 dREQ;
1412
1413 req->type = EIO_MLOCK;
1414 req->sv2 = SvREFCNT_inc (data);
1415 req->ptr2 = (char *)svptr + offset;
1416 req->size = len;
1417
1418 REQ_SEND;
1419 }
1420}
1421
1422void
1423aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
1424 PPCODE:
1425{
1426 dREQ;
1427
1428 req->type = EIO_MLOCKALL;
1429 req->int1 = flags;
1430
1431 REQ_SEND;
1432}
1433
1434void
1696aio_busy (double delay, SV *callback=&PL_sv_undef) 1435aio_busy (double delay, SV *callback=&PL_sv_undef)
1697 PPCODE: 1436 PPCODE:
1698{ 1437{
1699 dREQ; 1438 dREQ;
1700 1439
1701 req->type = REQ_BUSY; 1440 req->type = EIO_BUSY;
1702 req->nv1 = delay < 0. ? 0. : delay; 1441 req->nv1 = delay < 0. ? 0. : delay;
1703 1442
1704 REQ_SEND; 1443 REQ_SEND;
1705} 1444}
1706 1445
1707void 1446void
1708aio_group (SV *callback=&PL_sv_undef) 1447aio_group (SV *callback=&PL_sv_undef)
1709 PROTOTYPE: ;$
1710 PPCODE: 1448 PPCODE:
1711{ 1449{
1712 dREQ; 1450 dREQ;
1713 1451
1714 req->type = REQ_GROUP; 1452 req->type = EIO_GROUP;
1715 1453
1716 req_send (req); 1454 req_submit (req);
1717 XPUSHs (req_sv (req, AIO_GRP_KLASS)); 1455 XPUSHs (req_sv (req, aio_grp_stash));
1718} 1456}
1719 1457
1720void 1458void
1721aio_nop (SV *callback=&PL_sv_undef) 1459aio_nop (SV *callback=&PL_sv_undef)
1460 ALIAS:
1461 aio_nop = EIO_NOP
1462 aio_sync = EIO_SYNC
1722 PPCODE: 1463 PPCODE:
1723{ 1464{
1724 dREQ; 1465 dREQ;
1725 1466
1726 req->type = REQ_NOP; 1467 req->type = ix;
1727 1468
1728 REQ_SEND; 1469 REQ_SEND;
1729} 1470}
1730 1471
1731int 1472int
1732aioreq_pri (int pri = 0) 1473aioreq_pri (int pri = 0)
1733 PROTOTYPE: ;$
1734 CODE: 1474 CODE:
1735 RETVAL = next_pri - PRI_BIAS; 1475 RETVAL = next_pri;
1736 if (items > 0) 1476 if (items > 0)
1737 { 1477 {
1738 if (pri < PRI_MIN) pri = PRI_MIN; 1478 if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
1739 if (pri > PRI_MAX) pri = PRI_MAX; 1479 if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
1740 next_pri = pri + PRI_BIAS; 1480 next_pri = pri;
1741 } 1481 }
1742 OUTPUT: 1482 OUTPUT:
1743 RETVAL 1483 RETVAL
1744 1484
1745void 1485void
1746aioreq_nice (int nice = 0) 1486aioreq_nice (int nice = 0)
1747 CODE: 1487 CODE:
1748 nice = next_pri - nice; 1488 nice = next_pri - nice;
1749 if (nice < PRI_MIN) nice = PRI_MIN; 1489 if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
1750 if (nice > PRI_MAX) nice = PRI_MAX; 1490 if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1751 next_pri = nice + PRI_BIAS; 1491 next_pri = nice;
1752 1492
1753void 1493void
1754flush () 1494flush ()
1755 PROTOTYPE:
1756 CODE: 1495 CODE:
1757 while (nreqs) 1496 while (eio_nreqs ())
1758 { 1497 {
1759 poll_wait (); 1498 poll_wait ();
1760 poll_cb (); 1499 poll_cb ();
1761 } 1500 }
1762 1501
1763int 1502int
1764poll() 1503poll ()
1765 PROTOTYPE:
1766 CODE: 1504 CODE:
1767 poll_wait (); 1505 poll_wait ();
1768 RETVAL = poll_cb (); 1506 RETVAL = poll_cb ();
1769 OUTPUT: 1507 OUTPUT:
1770 RETVAL 1508 RETVAL
1771 1509
1772int 1510int
1773poll_fileno() 1511poll_fileno ()
1774 PROTOTYPE:
1775 CODE: 1512 CODE:
1776 RETVAL = respipe [0]; 1513 RETVAL = s_epipe_fd (&respipe);
1777 OUTPUT: 1514 OUTPUT:
1778 RETVAL 1515 RETVAL
1779 1516
1780int 1517int
1781poll_cb(...) 1518poll_cb (...)
1782 PROTOTYPE: 1519 PROTOTYPE:
1783 CODE: 1520 CODE:
1784 RETVAL = poll_cb (); 1521 RETVAL = poll_cb ();
1785 OUTPUT: 1522 OUTPUT:
1786 RETVAL 1523 RETVAL
1787 1524
1788void 1525void
1789poll_wait() 1526poll_wait ()
1790 PROTOTYPE:
1791 CODE: 1527 CODE:
1792 poll_wait (); 1528 poll_wait ();
1793 1529
1794void
1795setsig (int signum = SIGIO)
1796 PROTOTYPE: ;$
1797 CODE:
1798{
1799 if (block_sig_level)
1800 croak ("cannot call IO::AIO::setsig from within aio_block/callback");
1801
1802 LOCK (reslock);
1803 main_tid = pthread_self ();
1804 main_sig = signum;
1805 UNLOCK (reslock);
1806
1807 if (main_sig && npending)
1808 pthread_kill (main_tid, main_sig);
1809}
1810
1811void
1812aio_block (SV *cb)
1813 PROTOTYPE: &
1814 PPCODE:
1815{
1816 int count;
1817
1818 block_sig ();
1819 PUSHMARK (SP);
1820 PUTBACK;
1821 count = call_sv (cb, GIMME_V | G_NOARGS | G_EVAL);
1822 SPAGAIN;
1823 unblock_sig ();
1824
1825 if (SvTRUE (ERRSV))
1826 croak (0);
1827
1828 XSRETURN (count);
1829}
1830
1831int 1530int
1832nreqs() 1531nreqs ()
1833 PROTOTYPE:
1834 CODE: 1532 CODE:
1835 RETVAL = nreqs; 1533 RETVAL = eio_nreqs ();
1836 OUTPUT: 1534 OUTPUT:
1837 RETVAL 1535 RETVAL
1838 1536
1839int 1537int
1840nready() 1538nready ()
1841 PROTOTYPE:
1842 CODE: 1539 CODE:
1843 RETVAL = get_nready (); 1540 RETVAL = eio_nready ();
1844 OUTPUT: 1541 OUTPUT:
1845 RETVAL 1542 RETVAL
1846 1543
1847int 1544int
1848npending() 1545npending ()
1849 PROTOTYPE:
1850 CODE: 1546 CODE:
1851 RETVAL = get_npending (); 1547 RETVAL = eio_npending ();
1852 OUTPUT: 1548 OUTPUT:
1853 RETVAL 1549 RETVAL
1854 1550
1855int 1551int
1856nthreads() 1552nthreads ()
1857 PROTOTYPE:
1858 CODE: 1553 CODE:
1859 if (WORDACCESS_UNSAFE) LOCK (wrklock); 1554 RETVAL = eio_nthreads ();
1860 RETVAL = started;
1861 if (WORDACCESS_UNSAFE) UNLOCK (wrklock);
1862 OUTPUT: 1555 OUTPUT:
1863 RETVAL 1556 RETVAL
1864 1557
1558int
1559fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1560 CODE:
1561 RETVAL = posix_fadvise (fh, offset, length, advice);
1562 OUTPUT:
1563 RETVAL
1564
1565ssize_t
1566sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1567 CODE:
1568 RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1569 OUTPUT:
1570 RETVAL
1571
1572void
1573mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1574 PPCODE:
1575 sv_unmagic (scalar, MMAP_MAGIC);
1576{
1577 int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1578 void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1579 if (addr == (void *)-1)
1580 XSRETURN_NO;
1581
1582 sv_force_normal (scalar);
1583
1584 /* we store the length in mg_obj, as namlen is I32 :/ */
1585 sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1586 ->mg_obj = (SV *)length;
1587
1588 SvUPGRADE (scalar, SVt_PV); /* nop... */
1589
1590 if (!(prot & PROT_WRITE))
1591 SvREADONLY_on (scalar);
1592
1593 if (SvLEN (scalar))
1594 Safefree (SvPVX (scalar));
1595
1596 SvPVX (scalar) = (char *)addr;
1597 SvCUR_set (scalar, length);
1598 SvLEN_set (scalar, 0);
1599 SvPOK_only (scalar);
1600
1601 XSRETURN_YES;
1602}
1603
1604void
1605munmap (SV *scalar)
1606 CODE:
1607 sv_unmagic (scalar, MMAP_MAGIC);
1608
1609int
1610madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1611 ALIAS:
1612 mprotect = 1
1613 CODE:
1614{
1615 STRLEN svlen;
1616 void *addr = SvPVbyte (scalar, svlen);
1617 size_t len = SvUV (length);
1618
1619 if (offset < 0)
1620 offset += svlen;
1621
1622 if (offset < 0 || offset > svlen)
1623 croak ("offset outside of scalar");
1624
1625 if (!SvOK (length) || len + offset > svlen)
1626 len = svlen - offset;
1627
1628 addr = (void *)(((intptr_t)addr) + offset);
1629 eio_page_align (&addr, &len);
1630
1631 switch (ix)
1632 {
1633 case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1634 case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1635 }
1636}
1637 OUTPUT:
1638 RETVAL
1639
1640int
1641munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1642 CODE:
1643{
1644 STRLEN svlen;
1645 void *addr = SvPVbyte (scalar, svlen);
1646 size_t len = SvUV (length);
1647
1648 if (offset < 0)
1649 offset += svlen;
1650
1651 if (offset < 0 || offset > svlen)
1652 croak ("offset outside of scalar");
1653
1654 if (!SvOK (length) || len + offset > svlen)
1655 len = svlen - offset;
1656
1657 addr = (void *)(((intptr_t)addr) + offset);
1658 eio_page_align (&addr, &len);
1659#if _POSIX_MEMLOCK_RANGE
1660 RETVAL = munlock (addr, len);
1661#else
1662 RETVAL = ((errno = ENOSYS), -1);
1663#endif
1664}
1665 OUTPUT:
1666 RETVAL
1667
1668int
1669munlockall ()
1670 CODE:
1671#if _POSIX_MEMLOCK
1672 munlockall ();
1673#else
1674 RETVAL = -1;
1675 errno = ENOSYS;
1676#endif
1677 OUTPUT:
1678 RETVAL
1679
1680void _on_next_submit (SV *cb)
1681 CODE:
1682 SvREFCNT_dec (on_next_submit);
1683 on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1684
1865PROTOTYPES: DISABLE 1685PROTOTYPES: DISABLE
1866 1686
1867MODULE = IO::AIO PACKAGE = IO::AIO::REQ 1687MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1868 1688
1869void 1689void
1870cancel (aio_req_ornot req) 1690cancel (aio_req_ornot req)
1871 CODE: 1691 CODE:
1872 req_cancel (req); 1692 eio_cancel (req);
1873 1693
1874void 1694void
1875cb (aio_req_ornot req, SV *callback=&PL_sv_undef) 1695cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1876 CODE: 1696 PPCODE:
1697{
1698 if (GIMME_V != G_VOID)
1699 XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1700
1701 if (items > 1)
1702 {
1703 SV *cb_cv =get_cb (callback);
1704
1877 SvREFCNT_dec (req->callback); 1705 SvREFCNT_dec (req->callback);
1878 req->callback = newSVsv (callback); 1706 req->callback = SvREFCNT_inc (cb_cv);
1707 }
1708}
1879 1709
1880MODULE = IO::AIO PACKAGE = IO::AIO::GRP 1710MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1881 1711
1882void 1712void
1883add (aio_req grp, ...) 1713add (aio_req grp, ...)
1884 PPCODE: 1714 PPCODE:
1885{ 1715{
1886 int i; 1716 int i;
1887 aio_req req;
1888
1889 if (main_sig && !block_sig_level)
1890 croak ("aio_group->add called outside aio_block/callback context while IO::AIO::setsig is in use");
1891 1717
1892 if (grp->int1 == 2) 1718 if (grp->int1 == 2)
1893 croak ("cannot add requests to IO::AIO::GRP after the group finished"); 1719 croak ("cannot add requests to IO::AIO::GRP after the group finished");
1894 1720
1895 for (i = 1; i < items; ++i ) 1721 for (i = 1; i < items; ++i )
1896 { 1722 {
1723 aio_req req;
1724
1897 if (GIMME_V != G_VOID) 1725 if (GIMME_V != G_VOID)
1898 XPUSHs (sv_2mortal (newSVsv (ST (i)))); 1726 XPUSHs (sv_2mortal (newSVsv (ST (i))));
1899 1727
1900 req = SvAIO_REQ (ST (i)); 1728 req = SvAIO_REQ (ST (i));
1901 1729
1902 if (req) 1730 if (req)
1903 { 1731 eio_grp_add (grp, req);
1904 ++grp->size;
1905 req->grp = grp;
1906
1907 req->grp_prev = 0;
1908 req->grp_next = grp->grp_first;
1909
1910 if (grp->grp_first)
1911 grp->grp_first->grp_prev = req;
1912
1913 grp->grp_first = req;
1914 }
1915 } 1732 }
1916} 1733}
1917 1734
1918void 1735void
1919cancel_subs (aio_req_ornot req) 1736cancel_subs (aio_req_ornot req)
… …
1928 AV *av; 1745 AV *av;
1929 1746
1930 grp->errorno = errno; 1747 grp->errorno = errno;
1931 1748
1932 av = newAV (); 1749 av = newAV ();
1750 av_extend (av, items - 1);
1933 1751
1934 for (i = 1; i < items; ++i ) 1752 for (i = 1; i < items; ++i )
1935 av_push (av, newSVsv (ST (i))); 1753 av_push (av, newSVsv (ST (i)));
1936 1754
1937 SvREFCNT_dec (grp->sv1); 1755 SvREFCNT_dec (grp->sv1);
… …
1944 grp->errorno = errorno; 1762 grp->errorno = errorno;
1945 1763
1946void 1764void
1947limit (aio_req grp, int limit) 1765limit (aio_req grp, int limit)
1948 CODE: 1766 CODE:
1949 grp->int2 = limit; 1767 eio_grp_limit (grp, limit);
1950 aio_grp_feed (grp);
1951 1768
1952void 1769void
1953feed (aio_req grp, SV *callback=&PL_sv_undef) 1770feed (aio_req grp, SV *callback=&PL_sv_undef)
1954 CODE: 1771 CODE:
1955{ 1772{
1956 SvREFCNT_dec (grp->sv2); 1773 SvREFCNT_dec (grp->sv2);
1957 grp->sv2 = newSVsv (callback); 1774 grp->sv2 = newSVsv (callback);
1775 grp->feed = aio_grp_feed;
1958 1776
1959 if (grp->int2 <= 0) 1777 if (grp->int2 <= 0)
1960 grp->int2 = 2; 1778 grp->int2 = 2;
1961 1779
1962 aio_grp_feed (grp); 1780 eio_grp_limit (grp, grp->int2);
1963} 1781}
1964 1782

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